78947793284 has 12 divisors (see below), whose sum is σ = 138161440284. Its totient is φ = 39473096064.

The previous prime is 78947793277. The next prime is 78947793307. The reversal of 78947793284 is 48239774987.

It can be written as a sum of positive squares in 2 ways, for example, as 21294981184 + 57652812100 = 145928^2 + 240110^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59024 + ... + 401720.

It is an arithmetic number, because the mean of its divisors is an integer number (11513453357).

Almost surely, 2^78947793284 is an apocalyptic number.

It is an amenable number.

78947793284 is a deficient number, since it is larger than the sum of its proper divisors (59213647000).

78947793284 is a wasteful number, since it uses less digits than its factorization.

78947793284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400294 (or 400292 counting only the distinct ones).

The product of its digits is 170698752, while the sum is 68.

The spelling of 78947793284 in words is "seventy-eight billion, nine hundred forty-seven million, seven hundred ninety-three thousand, two hundred eighty-four".